Barely used Sennheiser bluetooth wireless headphones (model HD 4.40BT). Basically brand-new. Controls on headphone for changing song, volume, answering phone calls, etc. (see link below for Sennheiser site which has all the details). Charge with USB. Option of connecting an audio wire (not an Apple lightning cord) as well, which saves battery life. Comes with soft fabric carrying case, audio cord, "quick guide" instruction pamphlet and charging cord. Full PDF instruction manual can also be found online, and covers more details than the pamphlet. Note: these are NOT "noise-cancelling" headphones. https://en-ca.sennheiser.com/wireless-headphones-bluetooth-hd-4-40-bt